Saturday, 24 September 2011

Possible paradigm shift in engine technology?

Here is the principle copied from the website of: www.tocircle.com


Problems have given birth to most innovations throughout history. The challenge that triggered Tocircle’s engineers was the need for improving the Wankel engine.

The beauty of the Tocircle machine is that the piston moves in a perfect circle. It rotates within a cylinder around the central drive shaft. The circular motion makes the motor almost vibration-free and exceptionally quiet. Vanes create chambers which give the rotary machine a constant moment arm and an impressively high rotation momentum.

The solution turned out to reach far beyond what it was meant to solve in the outset. Knowing that 20 % of the world’s power is consumed by pump systems, it soon became obvious that the range of possible applications was vast. During the development period Tocircle has produced and tested pumps, compressors, expanders and combustion engines based on this unique invention.
In essence the Tocircle concept is a simple idea based on a new geometric principle. Tocircle Industries owns worldwide patents to the technology which can be used for engines, multiphase pumps, expanders, compressors, steam engines, injection pumps, vacuum pumps and more, in a variety of applications. The technology has the potential of becoming very important to petroleum, water and automotive industries.

It looks like:

Sunday, 14 August 2011

3D Printing - The next Industrial Revolution - without the Industry

You need a spare carburetor for your vintage car. You go to your street corner 3D print shop. They download the carburetor software from the car manufacturer. One hour later you collect your part.

It has been made by a process called additive manufacturing. The process uses the exact amount of metal needed. With machined parts, a significant amount of metal is wasted. There is no inventory, no transport and no working capital locked up. The CFO will love it. The customer will love it.

Virtually any 3D product can be made on demand.

This will turn conventions totally on their head. This will be to manufacturing what the Internet was to communications.

Some examples:

A video camera



A metal part:



Another example:



The Economist got excited about this some time ago. Check their article: http://econ.st/pqDufM

Saturday, 13 August 2011

Seawater Greenhouse


Climate change, together with rising world populations and unsustainable farming practices, are causing the exhaustion of fresh water and food resources. The necessity for both is expected to exceed availability in the foreseeable future. It is the simple reality of this situation which gave rise to the idea for the Seawater Greenhouse.

The Seawater Greenhouse provides a low-cost solution by enabling year-round crop production in some of the world’s hottest and driest regions. It does this using seawater and sunlight.   The technology imitates natural processes, helping to restore the environment while significantly reducing the operating costs of greenhouse horticulture.

Saturday, 9 July 2011

Let us talk about biochar

There is too much CO2 in the atmosphere. It is put there by combustion of coal, oil and gas and the burning and decomposition of organic matter. Hydrocarbons that have been deposited as organic matter over millions of years are combusted and hence producing greenhouse gases at a pace faster than the environment can absorb without significant damaging knock-on effects.

Photosynthesis on a large scale is a mitigating factor, but the massive destruction of virgin forests is counteracting this. If the carbon captured from the atmosphere by photosynthesis could be captured and stored, then nature would contribute to capture and man to storage. The use of bio-waste and crop residues as feed-stock for the production of biochar can represent a promising technical solution. Biochar is produced through pyrolysis, combustion with minimal oxygen. The process is carbon negative. Apart from the Carbon Capture and Storage (CCS) aspect, biochar has dramatic beneficial effects on soil. Because of its porosity, it acts as a sponge, providing a mechanism for slow-release of water and nutrients, as well as acting as an excellent biosphere for microorganisms that are essential for healthy soils.

In poor agrarian societies in the south, where the soils are typically poor in carbon and nutrients, the addition of biochar can make a dramatic difference. Thoughtful agro-ecology, agro forestry and intercropping where food and energy crops can be grown in an integrated fashion, can achieve multiple positive effects:


  • Correct use of crops can introduce nitrogen to the soil and produce the right mineral balance
  • The use of oil crops like Millettia Pinnata on poor soils can provide fuel for transport and energy
  • Bio-waste and crop residues producing biochar will create a benign circle of increasing yields
Here is a schematic of biochar production:



Intelligent use of appropriate technologies and methods, working closely with the people on the ground can address many of the fundamental problems we face with desertification, malnutrition, ill-health and so on.

Saturday, 30 April 2011

Cuban Memories

On a peaceful Saturday morning - sorting my hard disk, I came across a snippet of Video I made in 2007. 5 intrepid travelling boys intent on discovering Cuba. One day we rented a horse each and set out into the back country. There were no roads; hence no cars. We felt like real compesinos.


After a long ride, we arrived at a farm, and met a delightful bunch of genuine campesinos. This is what welcomed us:


Safely back in beautiful Trinidad - a UNESCO World Heritage site, we relaxed with good local food and music.

And in Cuba, you cannot avoid coming across some beautiful women. The rumours are true!


But - boys will be boys, and here is the experience the really blew us away! Right in the middle of a remote country road, we came across some guys with a steam train, and they wasted no time inviting us on board. Some of us got really excited! See for yourself!





There could be much more to tell, but life is too short. :-)

Thursday, 14 April 2011

Accelerating! The Serial Hybrid with in-wheel electric motors

My dream car is a radical departure from what we have today. Well not quite.. It will have four wheels. But they will be different. This picture hints at it:
Research into these motors is advancing nicely. Here is an exploded view of one version:


Why not have the kinetic energy produced right where it is needed? In the wheel itself! Several companies are now researching in-wheel motors. The next item for discussion is the battery. Tesla already has one with a range of 300 + kilometers. But I want 1,000 +. 


Advances in battery technology have not stopped. Check this quote from some research going on at Stanford University:

In this project, researchers Stanford University will seek to develop an "All-Electron Battery", a completely new class of electrical energy storage devices for electric vehicles that has the potential to provide ultra-high energy and power densities, while enabling extremely high cycle life. The All-Electron Battery stores energy by moving electrons, rather than ions, and uses electron/hole redox instead of capacitive polarization of a double-layer. This technology uses a novel architecture that has potential for very high energy density because it decouples the two functions of capacitors: charge separation and breakdown strength. If successful, this project will develop a completely new paradigm in energy storage for electrified vehicles that could revolutionize the electric vehicle industry and establish U.S. leadership in advanced energy storage technology for electric vehicles.

But there is more! Have you heard about the Wave Disk Generator? It is a completely new engine concept and looks a bit like this:


And here is a schematic of how it works:


This combustion engine will reduce emissions by 90% compared to conventional internal combustion engines. It will be perfect for recharging the batteries in your future electric car. With a 50 liter tank this serial hybrid concept will probably give you a range of 2,000km on one tank.

This dream of a combo will not hit your stores quite yet. But when it does, cars will become cheaper to build, cheaper to run and will become the darlings of Mother Earth!